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5159bbad8b
destructors. We previously tried to patch up the exception specification after completing the class, which went wrong when the exception specification was needed within the class body (in particular, by a friend redeclaration of the destructor in a nested class). We now mark the destructor as having a not-yet-computed exception specification immediately after creating it. This requires delaying various checks against the exception specification (where we'd previously have just got the wrong exception specification, and now find we have an exception specification that we can't compute yet) when those checks fire while the class is being defined. This also exposed an issue that we were missing a CodeSynthesisContext for computation of exception specifications (otherwise we'd fail to make the module containing the definition of the class visible when computing its members' exception specs). Adding that incidentally also gives us a diagnostic quality improvement. This has also exposed an pre-existing problem: making the exception specification evaluation context a non-SFINAE context (as it should be) results in a bootstrap failure; PR38850 filed for this. llvm-svn: 341499
37 lines
737 B
C++
37 lines
737 B
C++
// RUN: %clang_cc1 -x c++ -std=c++17 -fmodules -fmodules-local-submodule-visibility -fmodules-cache-path=%t %s -verify
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// expected-no-diagnostics
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#pragma clang module build PR38627
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module PR38627 {}
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#pragma clang module contents
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#pragma clang module begin PR38627
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namespace PR38627 {
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struct X {
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virtual ~X() {}
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struct C {
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friend X::~X();
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} c;
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};
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}
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#pragma clang module end
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#pragma clang module endbuild
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#pragma clang module import PR38627
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namespace PR38627 {
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struct Y {
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virtual ~Y() {}
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struct C {
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friend Y::~Y();
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} c;
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};
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static_assert(noexcept(X().~X()));
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static_assert(noexcept(Y().~Y()));
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struct A { virtual ~A() = default; };
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struct B : public A, public X {
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virtual ~B() override = default;
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};
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} // PR38627
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